I believe the problem is the include_path not being set correctly but tried all variations I can think of (listed below and verified using phpinfo() at bottom of script) but I always get the same error in the logs -

PHP Fatal error: Class 'Zend_OpenId_Consumer' not found in /home1/mydomain/public_html/l.php on line 4 ($consumer = new Zend_OpenId_Consumer();)

It looks like you posted to the correct forum, but reading through to spot the issue and the cause is a little messy because of the way your settings and your commentary kind of blend together. you can use [ code ] or [ quote ] (without spaces) to separate the two and that should help readability. I am reading through it right now and will help if i'm able

Open the file and see if you can find the class. I have been working with the google analytics api lately and ran into errors with their sample code because they referenced a class apiClient that had apparently been changed to Google_Client. I argued with the include path for a while before actually getting in and realizing that the issue was with the documentation not the path.